Mountain bike helmet race cycling helmet suitable for men sizes 53 57 cm 58 62 cm us sizes sm l main colour white surface matt number of air vents 22 applications all mountain road chin padding chin pad not inlcuded inner padding removable washable visor with visor detachable size adjustments wheel adjustment system strap adjustable construction in mold outer material polycarbonate weight 250 g inner material polystyrene eps